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Key Features
- Canon EF Lens to FUJIFILM X-Mount
- Ultra-High Index Tantalum-Based Glass
- Increases Maximum Aperture by 1 f/Stop
- Increases Angle of View by 0.71x
The Canon EF Lens to FUJIFILM X-Mount Camera Speed Booster ULTRA from Metabones improves upon the original Metabones Speed Booster with a 5 element/4 group optical design that incorporates ultra-high refractive index tantalum-based glass for improved sharpness and reduced distortion and vignetting. The Speed Booster ULTRA allows a full frame Canon EF lens to be mounted to an APS-C format X-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by approximately one f/stop.
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The description doesn't mention autofocus -- just ...
The description doesn't mention autofocus -- just to confirm, this is the newest version that allows PDAF autofocus on Fuji cameras?
This is the newest version that allows PDAF on Fuji cameras. The model number for is the X-BT1.
Date published: 2021-10-14
Does this support ef-s lenses? Thanks
Does this support ef-s lenses? Thanks
EF-S lenses are not compatible with the Metabones Canon EF Lens to FUJIFILM X-Mount Camera Speed Booster ULTRA.
Date published: 2023-05-01
Hi, does this speedboster allow IBIS to work with ...
Hi, does this speedboster allow IBIS to work with mechanical lenses? I use old vintage lenses adapted to EF. Also, does the Autofocus work with Canon and Sigma EF lenses?
If using this adapter with a Fuji X body like the X-T4, which has built in stabilization, you can still utilize that feature with adapted EF lenses.
Date published: 2021-10-14
Does this adapter work for Canon FD lenses?
Does this adapter work for Canon FD lenses?
The Metabones Canon EF Lens to FUJIFILM X-Mount Camera Speed Booster ULTRA will not work with Canon FD lenses; it only works with EF lenses.
Date published: 2024-01-31
"Although the lens will fit physically, automatic ...
"Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions will not be retained using this speed booster."
Does that mean Aperture priority , Shutter priority, and Auto exposure are not supported ? Only full Manual exposure is available ?
You will have full auto focus, and auto metering.
Date published: 2023-09-21
Ignoring the speedboosting optics, how good are ...
Ignoring the speedboosting optics, how good are the smart adapter features (AF, stabilization, EXIF) compared to Fringer?
Metabones is very well-known for making great adapters; their construction quality, level of support (firmware updates, customer support, etc), and features are typically at the highest level amongst the adapter brands.
Date published: 2023-08-07
How fast is it compare to fringer?
How fast is it compare to fringer?
The Fringer does not increase speed
Date published: 2021-04-23
What's the difference between this model ...
What's the difference between this model (MEMBSPEFXBT1) and the CINE model (MEMBSPEFXBT2)?
The Metabones Canon EF to FUJIFILM X-Mount T CINE Speed Booster ULTRA 0.71x Adapter differs from the Metabones Canon EF Lens to FUJIFILM X-Mount Camera Speed Booster ULTRA in that it offers a locking mechanism on for added stability.
Date published: 2022-12-20